Local mobility of substituted polyacetylenes measured by quasielastic neutron scattering and its relationship with gas permeability

Authors
Kanaya, T Teraguchi, M Masuda, T Kaji, K
Citation
T. Kanaya et al., Local mobility of substituted polyacetylenes measured by quasielastic neutron scattering and its relationship with gas permeability, POLYMER, 40(25), 1999, pp. 7157-7161
Citations number
27
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER
ISSN journal
00323861 → ACNP
Volume
40
Issue
25
Year of publication
1999
Pages
7157 - 7161
Database
ISI
SICI code
0032-3861(199912)40:25<7157:LMOSPM>2.0.ZU;2-W
Abstract
Local mobility of three substituted polyacetylenes was investigated by mean s of a quasielastic neutron scattering technique aiming at elucidating the origin of gas permeability of these polymers. It was found that the local f lux, which is defined as the product of the relaxation rate Gamma, and the mobile fraction f(m), increases with the gas permeability coefficient. This suggests that the local flux is an important factor controlling gas permea bility. (C) 1999 Elsevier Science Ltd. All rights reserved.